yunsip | a1f77abe19f29f5f8243a0a9eb839ed34ec15310e7072b846f7439b3797f0a19

Analysis

max time kernel
119s
max time network
17s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
03-08-2024 16:41

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General

Target

c0326f0441e0d774e048af1fc970bb60N.dll
Size

1.0MB
MD5

c0326f0441e0d774e048af1fc970bb60
SHA1

a15536fca8e68850bb80b48dbc8bc5ad36f42423
SHA256

a1f77abe19f29f5f8243a0a9eb839ed34ec15310e7072b846f7439b3797f0a19
SHA512

24954db24fe8b566b16a9e99bd0e4a943e6d2f8ec03a8a9aadcf73ca5afc8a523678ebaad5f6abbfe4a126ed538d83314d874d397550bcb71a91a97bcd30555f
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYa:o6RI1Fo/wT3cJYYYYYYYYYYYYa

Score

10^/10

yunsip banker discovery trojan

Malware Config

Signatures

Yunsip
Remote backdoor which communicates with a C2 server to receive commands.
trojan banker yunsip
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
discovery

System Language Discovery
T1614.001

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2348 wrote to memory of 2228	2348	rundll32.exe	rundll32.exe
PID 2348 wrote to memory of 2228	2348	rundll32.exe	rundll32.exe
PID 2348 wrote to memory of 2228	2348	rundll32.exe	rundll32.exe
PID 2348 wrote to memory of 2228	2348	rundll32.exe	rundll32.exe
PID 2348 wrote to memory of 2228	2348	rundll32.exe	rundll32.exe
PID 2348 wrote to memory of 2228	2348	rundll32.exe	rundll32.exe
PID 2348 wrote to memory of 2228	2348	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c0326f0441e0d774e048af1fc970bb60N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2348

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c0326f0441e0d774e048af1fc970bb60N.dll,#1
2⤵
- System Location Discovery: System Language Discovery
PID:2228

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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